Mitsubishi Electric MUCF-GA35VB Page 1 Service Manual Download

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CONTENTS

1. TECHNICAL CHANGES ····································2

2. PART NAMES AND FUNCTIONS······················5

3. SPECIFICATION·················································5

4. NOISE CRITERIA CURVES ·······························6

5. OUTLINES AND DIMENSIONS ·························7

6. WIRING DIAGRAM ············································8

7. REFRIGERANT SYSTEM DIAGRAM ··············10

8. PERFORMANCE CURVES ······························13

9. TROUBLESHOOTING······································22

10. DISASSEMBLY INSTRUCTIONS·····················24

11. PARTS LIST······················································31

12. RoHS PARTS LIST···········································34

FLOOR AND CEILING TYPE AIR CONDITIONERS

HFC

utilized

R410A

MUCF-GA35VB -
MUCF-GA50VB -
MUCF-GA60VB -

SERVICE MANUAL

Wireless type
Models

OUTDOOR UNIT

NOTE:
This service manual describes technical data of the outdoor units.
RoHS compliant products have <G> mark on the spec name plate.
For servicing of RoHS compliant products, refer to the RoHS PARTS LIST (RoHS compliant).

Indoor unit service manual

MCF-GA•VB Series (OB382)

No. OB383

REVISED EDITION-A

Revision A:

●

RoHS PARTS LIST has been added.

Please void OB383.

MUCF-GA50VB

OB383A--1.qxp 06.5.9 7:08 PM Page 1

Summary of Contents for MUCF-GA35VB

Page 1: ...D CEILING TYPE AIR CONDITIONERS HFC utilized R410A MUCF GA35VB MUCF GA50VB MUCF GA60VB E1 E1 E1 SERVICE MANUAL Wireless type Models OUTDOOR UNIT NOTE This service manual describes technical data of the outdoor units RoHS compliant products have G mark on the spec name plate For servicing of RoHS compliant products refer to the RoHS PARTS LIST RoHS compliant Indoor unit service manual MCF GA VB Ser...

Page 2: ...Kind Color Smell w1 Ozone Destruction Parameter based on CFC 11 w2 Global Warmth Parameter based on CO2 INFORMATION FOR THE AIR CONDITIONER WITH R410A REFRIGERANT This room air conditioner adopts HFC refrigerant R410A which never destroys the ozone layer Pay particular attention to the following points though the basic installation procedure is same as that for R22 conditioners 1 As R410A has work...

Page 3: ...k detector R410A has high pressures beyond the measurement range of existing gauges Port diameters have been changed to prevent any other refrigerant from being charged into the unit Hose material and cap size have been changed to improve the pressure resistance Dedicated for HFC refrigerant 6 35 mm and 9 52 mm Description Clamp bar hole has been enlarged to reinforce the spring strength in the to...

Page 4: ... the vacuum pump for air purging for the purpose of environmental protection 5 Additional charge For additional charging charge the refrigerant from liquid phase of the gas cylinder If the refrigerant is charged from the gas phase composition change may occur in the refrigerant inside the cylinder and the outdoor unit In this case ability of the refrigeration cycle decreases or normal operation ca...

Page 5: ... 2 196 15 7 98 1 744 95 37 7 59 0 39 2 65 RN196VHSHT 1 300 C R 1 80 C S 3 00 RA6V50 PA WHT BLK 79 5 BLK RED 83 0 850o605o290 44 52 825 1 1 45 520 NEO22 MUCF GA60VB Cooling Single phase 230V 50Hz 6 0 3 1 2 322 25 10 62 2 370 97 74 10 07 0 55 2 45 NN29VBAHT 1 900 C R 0 80 C S 1 64 RA6V60 MA WHT BLK 71 BLK RED 89 850o605o290 60 53 873 1 1 85 1 200 NEO22 Electrical data Compressor Fan motor Special re...

Page 6: ...0 NC 40 NC 30 NC 20 NC 70 OCTAVE BAND SOUND PRESSURE LEVEL dB re 0 0002 MICRO BAR BAND CENTER FREQUENCIES Hz APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE Test conditions Cooling Dry bulb temperature 35 Wet bulb temperature 24 52 SPL dB A LINE COOLING FUNCTION High FAN SPEED MUCF GA50VB OUTDOOR UNIT MICROPHONE 1m 49 SPL dB A LINE COOLING FUNCTION High FAN SPEED 90 80 70 60 50 40 30 20 10 6...

Page 7: ... 12 7 MUCF GA50VB 15 88 MUCF GA60VB 3 5 3 0 30 100 161 157 74 850 500 183 20 292 605 248 35 350 50 290 310 345 20 355 90 Drainage hole 16 2 320 25 4 3 3 5 155 90 104 74 260 10 780 500 122 40 540 320 285 255 Service panel Gas refrigerant pipe joint Refrigerant pipe flared 12 7 Liquid refrigerant pipe joint Refrigerant pipe flared 6 35 Air out Air in Air in 109 32 110 147 Drainage 3 holes 33 100mm o...

Page 8: ... NAME COMPRESOR INNER PROTECTOR OUTDOOR FAN MOTOR INNER PROTECTOR TERMINAL BLOCK SYMBOL 52C NAME COMPRESSOR CONTACTOR MUCF GA35VB CIRCUIT BREAKER POWER SUPPLY N 230V 50Hz 12V GRN YLW TB2 RED WHT BLK WHT BLU 3 2 1 RED MF C2 MC C1 S R C N 2 TO INDOOR UNIT CONNECTING WHT BLU BLK RED WHT 52C TB1 WHT BLK 52C PE L 1 NO COM DSAR BRN BRN SYMBOL TB1 TB2 52C SYMBOL MC MF SYMBOL C1 C2 DSAR NAME NAME NAME COM...

Page 9: ...T BRN BRN 1 About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing 2 Use copper conductors only For field wiring 3 Symbols below indicate Connector Terminal block NOTES SYMBOL C1 C2 DSAR NAME COMPRESSOR CAPACITOR OUTDOOR FAN CAPACITOR SURGE ABSORBER SYMBOL MC MF TB1 TB2 NAME COMPRESSOR INNER PROTECTOR OUTDOOR FAN MOTOR INNER PROTECTOR TERMINAL BLOCK SY...

Page 10: ... flow in cooling Outdoor heat exchanger Compressor Flared connection Flared connection Muffler Unit mm MUCF GA50VB Refrigerant pipe 12 7 with heat insulator Flared connection Flared connection Refrigerant pipe 6 35 with heat insulator Stop valve Compressor Stop valve with service port Outdoor heat exchanger Refrigerant flow in cooling Oil separator Capillary tube 3 0o 1 6o650 Capillary tube 2 5o 0...

Page 11: ...t insulator Flared connection Flared connection Refrigerant pipe 6 35 with heat insulator Stop valve Capillary tube 3 0X 2 0X1000 Compressor Stop valve with service port Outdoor heat exchanger Refrigerant flow in cooling Muffler 100 Muffler Unit mm ...

Page 12: ...10A charge is required Model MUCF GA35VB MUCF GA50VB MUCF GA60VB Refrigerant piping length one way Outdoor unit precharged 750 1 450 1 850 15m 160 20m 260 25m 360 7m 0 10m 60 Models REFRIGERANT PIPING MAX LENGTH MAX HEIGHT DIFFERENCE MUCF GA35VB MUCF GA50VB MUCF GA60VB Refrigerant piping Max length m A 25 Piping size O D mm Gas Liquid 12 7 6 35 15 88 ADDITIONAL REFRIGERANT CHARGE R410A g Calculati...

Page 13: ...left side of the chart on this page shows the difference between the indoor intake air wet dry bulb temperature and the indoor outlet air wet dry bulb temperature for your reference at service How to measure the indoor air wet bulb dry bulb temperature difference 1 Attach at least 2 sets of wet and dry bulb thermometers to the indoor air intake as shown in the figure and at least 2 sets of wet and...

Page 14: ...kgf f f Gauge 50 60 70 Ambient temperature Ambient humidity Outdoor low pressure 18 32 50 60 70 Ambient temperature Ambient humidity Outdoor unit current A 15 20 25 30 35 0 6 0 7 0 8 0 9 1 0 1 1 1 2 6 7 8 9 10 11 12 230V 15 20 25 30 35 5 6 7 8 9 10 18 32 230V MUCF GA50VB kgf F Gauge MPa Gauge 14 18 32 230V 15 20 50 25 60 30 70 35 3 4 5 6 18 32 230V 15 20 50 25 60 30 70 35 0 7 0 8 0 9 1 0 1 1 1 2 1...

Page 15: ...umidity Outdoor low pressure 18 32 50 60 70 Ambient temperature Ambient humidity Outdoor unit current A 15 20 25 30 35 0 5 0 6 0 7 0 8 0 9 1 0 1 1 5 6 7 8 9 10 11 230V 15 20 25 30 35 7 8 9 10 11 12 18 32 230V MUCF GA60VB kgf F Gauge MPa Gauge ...

Page 16: ...06 4 48 1 25 0 28 1241 28 18 4 11 3 29 0 80 928 3 94 3 15 0 80 974 3 78 3 02 0 80 1021 3 64 2 91 0 80 1067 28 20 4 29 2 92 0 68 974 4 11 2 80 0 68 1032 3 99 2 71 0 68 1056 3 85 2 62 0 68 1102 28 22 4 46 2 50 0 56 1009 4 31 2 41 0 56 1073 4 20 2 35 0 56 1102 4 03 2 25 0 56 1148 28 24 4 69 2 06 0 44 1056 4 52 1 99 0 44 1114 4 41 1 94 0 44 1148 4 27 1 88 0 44 1206 28 26 4 83 1 55 0 32 1114 4 69 1 50 ...

Page 17: ... 1380 3 87 1 08 0 28 1409 28 18 3 43 2 74 0 80 1137 3 15 2 52 0 80 1206 3 03 2 42 0 80 1230 28 20 3 61 2 45 0 68 1183 3 36 2 28 0 68 1241 3 24 2 20 0 68 1276 28 22 3 82 2 14 0 56 1230 3 57 2 00 0 56 1299 3 45 1 93 0 56 1322 28 24 4 03 1 77 0 44 1276 3 78 1 66 0 44 1334 3 68 1 62 0 44 1363 28 26 4 24 1 36 0 32 1322 3 99 1 28 0 32 1380 3 87 1 24 0 32 1409 29 18 3 43 2 88 0 84 1137 3 15 2 65 0 84 120...

Page 18: ... 1882 6 14 1 41 0 23 1937 28 18 5 64 4 23 0 75 1448 5 40 4 05 0 75 1520 5 18 3 89 0 75 1593 4 99 3 74 0 75 1665 28 20 5 88 3 70 0 63 1520 5 64 3 55 0 63 1611 5 47 3 45 0 63 1647 5 28 3 33 0 63 1720 28 22 6 12 3 12 0 51 1575 5 90 3 01 0 51 1674 5 76 2 94 0 51 1720 5 52 2 82 0 51 1792 28 24 6 43 2 51 0 39 1647 6 19 2 41 0 39 1738 6 05 2 36 0 39 1792 5 86 2 28 0 39 1882 28 26 6 62 1 79 0 27 1738 6 43...

Page 19: ... 2154 5 30 1 22 0 23 2199 28 18 4 70 3 53 0 75 1774 4 32 3 24 0 75 1882 4 15 3 11 0 75 1919 28 20 4 94 3 11 0 63 1846 4 61 2 90 0 63 1937 4 44 2 80 0 63 1991 28 22 5 23 2 67 0 51 1919 4 90 2 50 0 51 2027 4 73 2 41 0 51 2063 28 24 5 52 2 15 0 39 1991 5 18 2 02 0 39 2082 5 04 1 97 0 39 2127 28 26 5 81 1 57 0 27 2063 5 47 1 48 0 27 2154 5 30 1 43 0 27 2199 29 18 4 70 3 72 0 79 1774 4 32 3 41 0 79 188...

Page 20: ... 2548 7 68 1 69 0 22 2622 28 18 7 05 5 22 0 74 1960 6 75 5 00 0 74 2058 6 48 4 80 0 74 2156 6 24 4 62 0 74 2254 28 20 7 35 4 56 0 62 2058 7 05 4 37 0 62 2181 6 84 4 24 0 62 2230 6 60 4 09 0 62 2328 28 22 7 65 3 83 0 50 2132 7 38 3 69 0 50 2266 7 20 3 60 0 50 2328 6 90 3 45 0 50 2426 28 24 8 04 3 06 0 38 2230 7 74 2 94 0 38 2352 7 56 2 87 0 38 2426 7 32 2 78 0 38 2548 28 26 8 28 2 15 0 26 2352 8 04...

Page 21: ... 2916 6 63 1 46 0 22 2977 28 18 5 88 4 35 0 74 2401 5 40 4 00 0 74 2548 5 19 3 84 0 74 2597 28 20 6 18 3 83 0 62 2499 5 76 3 57 0 62 2622 5 55 3 44 0 62 2695 28 22 6 54 3 27 0 50 2597 6 12 3 06 0 50 2744 5 91 2 96 0 50 2793 28 24 6 90 2 62 0 38 2695 6 48 2 46 0 38 2818 6 30 2 39 0 38 2879 28 26 7 26 1 89 0 26 2793 6 84 1 78 0 26 2916 6 63 1 72 0 26 2977 29 18 5 88 4 59 0 78 2401 5 40 4 21 0 78 254...

Page 22: ...sting and discoloration 4 When troubleshooting refer to the flow chart on this page 9 2 Instruction of troubleshooting Start Indoor unit operates Outdoor unit doesn t operate Indoor unit doesn t receive the signal from remote controller OPERATION INDICATOR lamp on the indoor unit is flashing on and off Outdoor unit operates only in Test Run operation w1 Outdoor unit doesn t operate even in Test Ru...

Page 23: ...4 MUCF GA35VB 2 46 3 01 2 96 3 63 MUCF GA60VB 0 71 0 87 1 45 1 77 Abnormal Open or short circuit w Reference value MUCF GA50VB MUCF GA60VB Measure the resistance between the terminals with a tester Part temperature 10 C 40 C Color of lead wire WHT BLK BLK RED Open or short circuit 70 86 74 89 MUCF GA35VB 191 231 272 330 62 77 78 96 Normal Abnormal Outdoor fan motor MF INNER FUSE MUCF GA35VB 145i 2...

Page 24: ...binet Screws of the cabinet Photo 2 Screws of the front panel and motor support Screws of the cabinet 1 Slide the sleeve and check if there is a locking lever or not 2 The terminal with this connector has the locking mechanism 1Slide the sleeve 2Pull the terminal while pushing the locking lever 1Hold the sleeve and pull out the terminal slowly The terminal which has the locking mechanism can be de...

Page 25: ... on the propeller 4 Remove lead clamps and disconnect the outdoor fan motor connector 5 Remove screws fixing the fan motor 6 Remove the outdoor fan motor Photo 5 Propeller nut Outdoor fan motor Screws of the outdoor fan motor Lead clamps Hook Outdoor fan motor connector Propeller Outdoor fan capacitor Compressor capacitor Terminal block 2 Removing the electrical parts 1 Remove the service panel an...

Page 26: ...the terminal cover on the compressor 5 Disconnect lead wires from the glass terminal of the com pressor 6 Recover gas from the refrigerant circuit NOTE Recover gas from the pipes until the pressure gauge shows 0 kg cm2 0MPa 7 Disconnect the welded part of the discharge pipe 8 Disconnect the welded part of the suction pipe 9 Remove nuts fixing the compressor 10 Remove the compressor Compressor nuts...

Page 27: ... Photo 2 Screws of the cabinet Screws of the cabinet Service panel 2 Removing the electrical parts 1 Remove the service panel and the cabinet 2 Remove the following parts Compressor capacitor C1 Outdoor fan capacitor C2 Terminal block TB1 TB2 Compressor contactor 52C Photo 3 Outdoor fan capacitor C2 Compressor capacitor C1 Terminal blocks TB1 TB2 Connector Compressor contactor 52C ...

Page 28: ...nel 3 Remove the soundproof felt 4 Remove the terminal cover on the compressor 5 Disconnect lead wires from the glass terminal of the com pressor 6 Recover gas from the refrigerant circuit NOTE Recover gas from the pipes until the pressure gauge shows 0 kg cm2 0MPa 7 Disconnect the welded part of the discharge pipe 8 Disconnect the welded part of the suction pipe 9 Remove nuts fixing the compresso...

Page 29: ...A60VB Photo 1 Photo 3 Photo 2 Screws Screws Service panel Compressor capacitor C1 Outdoor fan capacitor C2 Terminal blocks TB1 TB2 2 Removing the electrical parts 1 Remove the cabinet Refer to 1 2 Remove the following parts Compressor capacitor C1 Outdoor fan capacitor C2 Terminal block TB1 TB2 Relay X1 Compressor contactor 52C Compressor contactor 52C Connector Relay X1 ...

Page 30: ...y panel 3 Remove the soundproof felt 4 Remove the terminal cover on the compressor 5 Disconnect the lead wires from the glass terminal of the compressor 6 Recover gas from the refrigerant circuit NOTE Recover gas from the pipes until the pressure gauge shows 0 kg cm2 0MPa 7 Disconnect the welded part of the discharge pipe 8 Disconnect the welded part of the suction pipe 9 Remove nuts fixing the co...

Page 31: ...5 6 7 8 9 10 11 12 13 E02 832 630 E02 815 232 E02 815 521 E02 754 900 E02 075 506 E02 832 290 E02 910 661 E02 910 662 E02 815 245 E02 835 233 E02 336 515 E02 815 297 E02 441 936 OUTDOOR HEAT EXCHANGER CABINET GRILLE OUT COMPRESSOR COMPRESSOR RUBBER SET BASE STOP VALVE GAS STOP VALVE LIQUID SERVICE PANEL BACK PANEL MOTOR SUPPORT TOP PANEL CAPILLARY TUBE RN135VHSHT 3RUBBERS SET 12 7 6 35 3 0x 1 4x55...

Page 32: ...INAL BLOCK TERMINAL BLOCK COMPRESSOR CONTACTOR SURGE ABSORBER RA6V33 2 0 440V AC 30 440V AC 3P 2P MF C2 C1 TB1 TB2 52C DSAR 1 1 1 1 1 1 1 1 No Part No Part name Remarks Symbol in Wiring Diagram Q ty unit MUCF GA35VB E1 1 2 3 4 6 5 11 2 OUTDOOR UNIT ELECTRICAL PARTS AND FUNCTIONAL PARTS Part numbers that are circled are not shown in the illustration MUCF GA35VB PARTS LIST non RoHS compliant ...

Page 33: ...ER MOTOR SUPPORT COMPRESSOR RUBBER SET COMPRESSOR RUBBER SET COMPRESSOR COMPRESSOR BASE BASE STOP VALVE GAS STOP VALVE GAS STOP VALVE LIQUID SERVICE PANEL OUTDOOR FAN MOTOR OUTDOOR FAN MOTOR OUTDOOR HEAT EXCHANGER OUTDOOR HEAT EXCHANGER SURGE ABSORBER TERMINAL BLOCK TERMINAL BLOCK OUTDOOR FAN CAPACITOR COMPRESSOR CAPACITOR COMPRESSOR CAPACITOR COMPRESSOR CONTACTOR HANDLE CAPILLARY TUBE CAPILLARY T...

Page 34: ... 12 13 RoHS G G G G G G G G G G G G G E12 832 630 E12 815 232 E12 815 521 E12 754 900 E12 075 506 E12 832 290 E12 910 661 E12 910 662 E12 815 245 E12 835 233 E12 336 515 E12 815 297 E12 441 936 OUTDOOR HEAT EXCHANGER CABINET GRILLE OUT COMPRESSOR COMPRESSOR RUBBER SET BASE STOP VALVE GAS STOP VALVE LIQUID SERVICE PANEL BACK PANEL MOTOR SUPPORT TOP PANEL CAPILLARY TUBE RN135VHSHT 3RUBBERS SET 12 7 ...

Page 35: ...TERMINAL BLOCK COMPRESSOR CONTACTOR SURGE ABSORBER RA6V33 2 0 440V AC 30 440V AC 3P 2P MF C2 C1 TB1 TB2 52C DSAR 1 1 1 1 1 1 1 1 No G G G G G G G G RoHS Part No Part name Remarks Symbol in Wiring Diagram Q ty unit MUCF GA35VB E1 1 2 3 4 6 5 12 2 OUTDOOR UNIT ELECTRICAL PARTS AND FUNCTIONAL PARTS Part numbers that are circled are not shown in the illustration MUCF GA35VB RoHS PARTS LIST RoHS compli...

Page 36: ...NEL OUT CABINET GRILLE OUT PROPELLER MOTOR SUPPORT COMPRESSOR RUBBER SET COMPRESSOR RUBBER SET COMPRESSOR COMPRESSOR BASE BASE STOP VALVE GAS STOP VALVE GAS STOP VALVE LIQUID SERVICE PANEL OUTDOOR FAN MOTOR OUTDOOR FAN MOTOR OUTDOOR HEAT EXCHANGER OUTDOOR HEAT EXCHANGER SURGE ABSORBER TERMINAL BLOCK TERMINAL BLOCK OUTDOOR FAN CAPACITOR COMPRESSOR CAPACITOR COMPRESSOR CAPACITOR COMPRESSOR CONTACTOR...

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Page 40: ...t to change without notice C C Copyright 2004 MITSUBISHI ELECTRIC ENGINEERING CO LTD Distributed in May 2006 No OB383 REVISED EDITION A 6 Distributed in Dec 2004 No OB383 6 Made in Japan HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN ...

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